70 Maxess Road ! Melville, New York 11747 (631) 936-7500 ! Fax (631) 396-7575 RECOMMENDED REFLOW SOLDERING PROFILE (General SMT Products) TEMPERATURE (°C) 250 +235°C 200 +175 ~ +195°C Typical Liquidus Temperature of Common Sn-Pb Solders PREHEAT 150 100 50 0 25 50 75 100 125 150 TIME (SECONDS) TEMPERATURE LIMITS Peak Temperature +260°C +250°C +240°C +230°C Max. Duration 5 SECONDS 15 SECONDS 25 SECONDS 40 SECONDS The above reflow soldering profile and temperature limits applies to the following NIC surface mount products: NTHC series… NCT Chip Thermistors 70 Maxess Road ! Melville, New York 11747 (631) 936-7500 ! Fax (631) 396-7575 RECOMMENDED FLOW-WAVE SOLDERING PROFILE (General SMT Products) Max. Temp +250° +200° TEMP ( °C ) +150° +100° +50° Time in wave 0 TIME** Series NTHC Type NTC Chip Thermistors ** - Duration of wave soldering cycle is not component dependent. Max. Temp. +250°°C Max. Time in Wave 5 Seconds RECOMMENDED LAND PATTERNS REFLOW / FLOW SOLDERING D B C A DIMENSIONS: (mm) CASE SIZE: 0402 DIMENSION REFLOW A 0.5 ~0.6 B 0.5 ~ 0.6 C 0.5 ~ 0.6 D 1.5 ~ 1.7 A 0603 FLOW REFLOW 0.8 ~ 1.2 0.8 ~ 1.5 0.7 ~ 0.8 0.7 ~ 0.8 0.8 ~1.0 0.8 ~ 1.0 2.6 ~ 3.2 2.6 ~ 3.2 0805 FLOW REFLOW 0.8 ~ 1.6 0.8 ~1.8 0.9 ~ 1.2 0.9 ~ 1.5 0.8 ~ 1.4 0.8 ~ 1.4 3.0 ~ 4.0 3.0 ~ 4.5